Zeolite Membrane Reactor for Pre-Combustion Carbon Dioxide Capture

Lin, Jerry; Dong, Junhang; Liu, Paul; Choi, Gerry

doi:10.2172/1659400

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DOE OSTI · 1659400

Zeolite Membrane Reactor for Pre-Combustion Carbon Dioxide Capture

Lin, Jerry·Dong, Junhang·Liu, Paul·Choi, Gerry

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Abstract

Water-gas shift (WGS) reaction followed by carbon dioxide (CO 2 ) separation is a critical step in the integrated gasification combined cycle (IGCC) process for fossil-fuel-fired electrical power generation with CO 2 capture. To intensify the IGCC process hydrogen-permselective zeolite membrane reactor offers promise to replace the conventional energy-intensive fixed-bed reactors and solvent-based CO 2 capture units. The objectives of this project were to develop a bench-scale zeolite membrane reactor (total membrane area: 932 cm 2 for a 21-tube membrane bundle) for the water-gas-shift reaction of raw syngas from an oxygen-blown coal-gasifier for H 2 production with simultaneous CO 2 separation at the capability of about 2 kilograms H 2 per day (equivalent to 2 kW IGCC power plant) and to demonstrate significant progress toward achieving overall performance goal of 90% CO 2 capture rate with 95% CO 2 purity at the cost of electricity 30% less than the baseline carbon capture approaches. This report summarizes results obtained in this project on scaling up the zeolite membrane reactor by a factor of 200 in membrane area, tests of the bench-scale zeolite membrane reactor for the water-gas-shift reaction at high temperature and high-pressure, and techno-economic analysis of the integration of the zeolite membrane reactor in IGCC power plant for the electrical generation with CO 2 capture.

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Lin, Jerry, Dong, Junhang, Liu, Paul, Choi, Gerry. 2020-04-12. Zeolite Membrane Reactor for Pre-Combustion Carbon Dioxide Capture. https://doi.org/10.2172/1659400

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